Do Solar Panels Produce More Energy in Summer?
Published on 17 February 2023 by Catarina Costa
- Solar PV
- Self-consumption
It is common to think that July and August are the best months for solar production. The answer is not that simple.
Climate factors
Photovoltaic production depends on day length, cloud cover and temperature. Longer days increase exposure hours, but excessively high temperatures reduce cell performance.
Other factors
Efficiency also depends on panel quality, sizing, professional installation, maintenance and module cleaning.
Accumulated dirt can reduce efficiency by 10% to 15%, and in extreme cases by up to 50%.
What is the best season?
Although summer has long days, high temperatures reduce thermal efficiency. The best months tend to be March, April, May and June, with good irradiation and milder temperatures.
Take advantage of the best solar season
With spring arriving, it is the ideal time to invest in a photovoltaic system sized to produce energy all year round.
